Michael Hồ Đình Hy (胡廷僖; 1808– 22 May 1857) was a Vietnamese mandarin official who was martyred for his Roman Catholic belief during the persecutions by Emperor Tự Đức.

During his years at the king's post, he performed many charitable acts to local unfortunates and helped to transport French and Portuguese missionaries on the waterways through his region under the guise of official business.

Unlike other unnamed Vietnamese Martyrs whose lives and deeds were orally recorded, parts of Hồ Đình Hy's life could be found in memoirs of the Fathers of Foreign Missions in France.

A local magistrate, discontented after Hồ Đình Hy had denied him access to the royal silk mill, petitioned to the king for his arrest based on his Christian activities.

[3][4][5] During his imprisonment and torture, he played a gambit with the local magistrates by signing a confession that he was involved with the French government, who did not favor the Vietnamese courts persecuting Christians.

Twenty-five years after his death, his eldest son, a retired priest, returned from the Dutch East Indies and justified his father's gambit.

To commemorate his beatification in 1900, a historian, Nguyễn Hữu Bài (courtesy name Phước Môn), educated under the Vietnamese court, summarized his life as follows: Đức Leo châu điểm nét tiêu diêu Emperor Tự Đức condemned his earthly life, Pope Leo glorified him in the afterlife.